Messages in this thread Patch in this message | | | From | "Ira W. Snyder" <> | Subject | [PATCH v2 1/9] dmatest: fix automatic buffer unmap type | Date | Wed, 2 Mar 2011 14:23:13 -0800 |
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The dmatest code relies on the DMAEngine API to automatically call dma_unmap_single() on src buffers. The flags it passes are incorrect, fix them.
Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu> --- drivers/dma/dmatest.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c index 5589358..7e1b0aa 100644 --- a/drivers/dma/dmatest.c +++ b/drivers/dma/dmatest.c @@ -285,7 +285,12 @@ static int dmatest_func(void *data) set_user_nice(current, 10); - flags = DMA_CTRL_ACK | DMA_COMPL_SKIP_DEST_UNMAP | DMA_PREP_INTERRUPT; + /* + * src buffers are freed by the DMAEngine code with dma_unmap_single() + * dst buffers are freed by ourselves below + */ + flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT + | DMA_COMPL_SKIP_DEST_UNMAP | DMA_COMPL_SRC_UNMAP_SINGLE; while (!kthread_should_stop() && !(iterations && total_tests >= iterations)) { -- 1.7.3.4
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